<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>147.如何使用HTML和CSS制作锯齿形边框</title>
  <link href="./style.css" rel="stylesheet">
</head>
<body>
  <section>
    <h2>锯齿形边框</h2>
  </section>
  <section>
    <h2>Zig Zag Border</h2>
  </section>
  <section>
    <h2>Zig Zag Border</h2>
  </section>
</body>
</html>